Large matrix creation

[Bonder-MJ]

Is it possible to make parallelcolt to work with larger than 2^31 cell matrices?
I want to create a matrix of 7.700 columns by 350.000 rows and it crashes with the error that the matrix is to large.

Thanks,
Marc Jan

[rwl]

What type of matrix are you instantiating? There are various sparse/dense
matrix implementations.

On 26 July 2013 09:50, Bonder-MJ notifications@github.com wrote:

Is it possible to make parallelcolt to work with larger than 2^31 cell
matrices?
I want to create a matrix of 7.700 columns by 350.000 rows and it crashes
with the error that the matrix is to large.

Thanks,
Marc Jan

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[Bonder-MJ]

I want to use a DenseDoubleMatrix2d

[rwl]

Try using DenseLargeDoubleMatrix2D.

https://github.com/rwl/ParallelColt/blob/master/src/main/java/cern/colt/matrix/tdouble/impl/DenseLargeDoubleMatrix2D.java#L33

On 26 July 2013 13:33, Bonder-MJ notifications@github.com wrote:

I want to use a DenseDoubleMatrix2d

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[Bonder-MJ]

Thanks! I missed that one.
Maybe it's good to change it in the java doc, these matrices are larger than the maximum value of an integer.